
<!DOCTYPE HTML>
<html lang="" >
    <head>
        <meta charset="UTF-8">
        <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
        <title>事件绑定v-on的工作原理 · petite-vue源码剖析</title>
        <meta http-equiv="X-UA-Compatible" content="IE=edge" />
        <meta name="description" content="">
        <meta name="generator" content="GitBook 3.2.3">
        <meta name="author" content="^_^肥仔John">
        
        
    
    <link rel="stylesheet" href="../../gitbook/style.css">

    
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-search-pro/search.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-code/plugin.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-back-to-top-button/plugin.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-tbfed-pagefooter/footer.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-chapter-fold/chapter-fold.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-expandable-chapters/expandable-chapters.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-splitter/splitter.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-anchor-navigation-ex/style/plugin.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-donate/plugin.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-highlight/website.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-fontsettings/website.css">
                
            
                
                <link rel="stylesheet" href="../../gitbook/gitbook-plugin-theme-comscore/test.css">
                
            
        

    

    
        
    
        
    
        
    
        
    
        
    
        
    

        
    
    
    <meta name="HandheldFriendly" content="true"/>
    <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <link rel="apple-touch-icon-precomposed" sizes="152x152" href="../../gitbook/images/apple-touch-icon-precomposed-152.png">
    <link rel="shortcut icon" href="../../gitbook/images/favicon.ico" type="image/x-icon">

    
    <link rel="next" href="3_bidirectional_binding.html" />
    
    
    <link rel="prev" href="1_attribute_binding.html" />
    

    </head>
    <body>
        
<div class="book">
    <div class="book-summary">
        
            
<div id="book-search-input" role="search">
    <input type="text" placeholder="Type to search" />
</div>

            
                <nav role="navigation">
                


<ul class="summary">
    
    

    

    
        
        <li class="header">前言</li>
        
        
    
        <li class="chapter " data-level="1.1" data-path="../../">
            
                <a href="../../">
            
                    
                    《Petite-Vue源码剖析》简介
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="1.2" data-path="../../0_intro/1_reason_for_source_reading.html">
            
                <a href="../../0_intro/1_reason_for_source_reading.html">
            
                    
                    为什么要读源码
            
                </a>
            

            
        </li>
    

    
        
        <li class="header">在线渲染</li>
        
        
    
        <li class="chapter " data-level="2.1" data-path="../0_intro.html">
            
                <a href="../0_intro.html">
            
                    
                    章节介绍
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.2" data-path="../1_start_from_static_view.html">
            
                <a href="../1_start_from_static_view.html">
            
                    
                    从静态视图首次渲染开始
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.3" data-path="../2_initial_rendering_and_rerendering_for_v-if.html">
            
                <a href="../2_initial_rendering_and_rerendering_for_v-if.html">
            
                    
                    条件v-if的首次渲染和重新渲染
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.4" data-path="../3_initial_rendering_and_rerendering_for_v-for.html">
            
                <a href="../3_initial_rendering_and_rerendering_for_v-for.html">
            
                    
                    循环v-for的首次渲染和重新渲染
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.5" data-path="1_attribute_binding.html">
            
                <a href="1_attribute_binding.html">
            
                    
                    属性绑定v-bind的工作原理
            
                </a>
            

            
        </li>
    
        <li class="chapter active" data-level="2.6" data-path="2_event_binding.html">
            
                <a href="2_event_binding.html">
            
                    
                    事件绑定v-on的工作原理
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.7" data-path="3_bidirectional_binding.html">
            
                <a href="3_bidirectional_binding.html">
            
                    
                    双向绑定v-model的工作原理
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.8" data-path="4_ref.html">
            
                <a href="4_ref.html">
            
                    
                    特殊指令ref的工作原理
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.9" data-path="../5_tips_for_template.html">
            
                <a href="../5_tips_for_template.html">
            
                    
                    优化手段template的原理和使用技巧
            
                </a>
            

            
        </li>
    

    
        
        <li class="header">响应式系统</li>
        
        
    
        <li class="chapter " data-level="3.1" data-path="../../2_reactivity_system/0_intro.html">
            
                <a href="../../2_reactivity_system/0_intro.html">
            
                    
                    章节介绍
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.2" data-path="../../2_reactivity_system/1_reactive_object_array.html">
            
                <a href="../../2_reactivity_system/1_reactive_object_array.html">
            
                    
                    逐行解读reactive如何构建对象和数组的响应式对象
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.3" data-path="../../2_reactivity_system/2_reactive_map_set.html">
            
                <a href="../../2_reactivity_system/2_reactive_map_set.html">
            
                    
                    逐行解读reactive如何构建Map和Set的响应式对象
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.4" data-path="../../2_reactivity_system/3_register_side_effect.html">
            
                <a href="../../2_reactivity_system/3_register_side_effect.html">
            
                    
                    逐行解读effect如何注册副作用函数
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.5" data-path="../../2_reactivity_system/4_cleanup_algorithm.html">
            
                <a href="../../2_reactivity_system/4_cleanup_algorithm.html">
            
                    
                    依赖清理优化算法详解-算法思路
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.6" data-path="../../2_reactivity_system/5_smi.html">
            
                <a href="../../2_reactivity_system/5_smi.html">
            
                    
                    依赖清理优化算法详解-基于JavaScript引擎的SMI进一步压榨性能
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="3.7" data-path="../../2_reactivity_system/6_trigger_and_scheduler.html">
            
                <a href="../../2_reactivity_system/6_trigger_and_scheduler.html">
            
                    
                    逐行解读trigger和调度器
            
                </a>
            

            
        </li>
    

    
        
        <li class="header">沙箱模型</li>
        
        
    
        <li class="chapter " data-level="4.1" data-path="../../3_sandbox.html">
            
                <a href="../../3_sandbox.html">
            
                    
                    模板表达式的沙箱模型
            
                </a>
            

            
        </li>
    

    

    <li class="divider"></li>

    <li>
        <a href="https://www.gitbook.com" target="blank" class="gitbook-link">
            Published with GitBook
        </a>
    </li>
</ul>


                </nav>
            
        
    </div>

    <div class="book-body">
        
            <div class="body-inner">
                
                    

<div class="book-header" role="navigation">
    

    <!-- Title -->
    <h1>
        <i class="fa fa-circle-o-notch fa-spin"></i>
        <a href="../.." >事件绑定v-on的工作原理</a>
    </h1>
</div>




                    <div class="page-wrapper" tabindex="-1" role="main">
                        <div class="page-inner">
                            
<div id="book-search-results">
    <div class="search-noresults">
    
                                <section class="normal markdown-section">
                                
                                <div id="anchor-navigation-ex-navbar"><i class="fa fa-navicon"></i><ul><li><span class="title-icon "></span><a href="#&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><b>1. </b>&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</a></li><ul><li><span class="title-icon "></span><a href="#&#x6DF1;&#x5165;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><b>1.1. </b>&#x6DF1;&#x5165;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</a></li><li><span class="title-icon "></span><a href="#&#x5C0F;&#x7ED3;"><b>1.2. </b>&#x5C0F;&#x7ED3;</a></li></ul></ul></div><h1 id="&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><a name="&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;" class="anchor-navigation-ex-anchor" href="#&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><i class="fa fa-link" aria-hidden="true"></i></a>1. &#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</h1>
<p>&#x5728;&#x4E66;&#x5199;petite-vue&#x548C;Vue&#x6700;&#x8212;&#x670D;&#x7684;&#x83AB;&#x8FC7;&#x4E8E;&#x901A;&#x8FC7;<code>@click</code>&#x7ED1;&#x5B9A;&#x4E8B;&#x4EF6;&#xFF0C;&#x800C;&#x4E14;&#x5728;&#x79FB;&#x9664;&#x5143;&#x7D20;&#x65F6;&#x6846;&#x67B6;&#x4F1A;&#x5E2E;&#x6211;&#x4EEC;&#x81EA;&#x52A8;&#x89E3;&#x9664;&#x7ED1;&#x5B9A;&#x3002;&#x7701;&#x53BB;&#x4E86;&#x8FC7;&#x53BB;&#x901A;&#x8FC7;<em>jQuery</em>&#x7684;&#x7D2F;&#x8D58;&#x3002;&#x800C;&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;&#x5728;petite-vue&#x4E2D;&#x5C31;&#x662F;&#x4E00;&#x4E2A;&#x6307;&#x4EE4;(directive)&#xFF0C;&#x548C;&#x5176;&#x4ED6;&#x6307;&#x4EE4;&#x7C7B;&#x4F3C;&#x3002;</p>
<h2 id="&#x6DF1;&#x5165;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><a name="&#x6DF1;&#x5165;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;" class="anchor-navigation-ex-anchor" href="#&#x6DF1;&#x5165;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;"><i class="fa fa-link" aria-hidden="true"></i></a>1.1. &#x6DF1;&#x5165;v-on&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;</h2>
<p><code>walk</code>&#x65B9;&#x6CD5;&#x5728;&#x89E3;&#x6790;&#x6A21;&#x677F;&#x65F6;&#x4F1A;&#x904D;&#x5386;&#x5143;&#x7D20;&#x7684;&#x7279;&#x6027;&#x96C6;&#x5408;<code>el.attributes</code>&#xFF0C;&#x5F53;&#x5C5E;&#x6027;&#x540D;&#x79F0;<code>name</code>&#x5339;&#x914D;<code>v-on</code>&#x6216;<code>@</code>&#x65F6;&#xFF0C;&#x5219;&#x5C06;&#x5C5E;&#x6027;&#x540D;&#x79F0;&#x548C;&#x5C5E;&#x6027;&#x503C;&#x538B;&#x5165;<code>deferred</code>&#x961F;&#x5217;&#x7684;&#x961F;&#x5C3E;&#xFF0C;&#x5F53;&#x5F53;&#x524D;&#x5143;&#x7D20;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;&#x548C;<code>v-modal</code>&#x5904;&#x7406;&#x540E;&#x4EE5;&#x53CA;&#x5B50;&#x5143;&#x7D20;&#x6240;&#x6709;&#x5C5E;&#x6027;&#x7ED1;&#x5B9A;&#x3001;<code>v-modal</code>&#x548C;&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;&#x5904;&#x7406;&#x540E;&#x518D;&#x5904;&#x7406;&#x3002;</p>
<p>&#x90A3;&#x95EE;&#x9898;&#x6765;&#x4E86;&#xFF0C;&#x4E3A;&#x4EC0;&#x4E48;&#x8981;&#x5C06;&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;&#x653E;&#x5230;&#x6700;&#x540E;&#x5904;&#x7406;&#x5462;&#xFF1F;</p>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/on.ts</span>
<span class="hljs-keyword">const</span> systemModifiers = [<span class="hljs-string">&apos;ctrl&apos;</span>, <span class="hljs-string">&apos;shift&apos;</span>, <span class="hljs-string">&apos;alt&apos;</span>, <span class="hljs-string">&apos;meta&apos;</span>]

<span class="hljs-keyword">const</span> modifiersGuards: Record&lt;
  <span class="hljs-built_in">string</span>,
  (e: Event, modifiers: Record&lt;<span class="hljs-built_in">string</span>, <span class="hljs-literal">true</span>&gt;) =&gt; <span class="hljs-built_in">void</span> | <span class="hljs-built_in">boolean</span>
&gt; = {
  stop: e =&gt; e.stopPropagation(),
  prevent: e =&gt; e.preventDefault(),
  self: e =&gt; e.target !== e.currentTarget,
  ctrl: e =&gt; !(e as KeyedEvent).ctrlKey,
  shift: e =&gt; !(e as KeyedEvent).shiftKey,
  alt: e =&gt; !(e as KeyedEvent).altKey,
  meta: e =&gt; !(e as KeyedEvent).metaKey,
  left: e =&gt; <span class="hljs-string">&apos;button&apos;</span> <span class="hljs-keyword">in</span> e &amp;&amp; (e as MouseEvent).button !== <span class="hljs-number">0</span>,
  middle: e =&gt; <span class="hljs-string">&apos;button&apos;</span> <span class="hljs-keyword">in</span> e &amp;&amp; (e as MouseEvent).button !== <span class="hljs-number">1</span>,
  right: e =&gt; <span class="hljs-string">&apos;button&apos;</span> <span class="hljs-keyword">in</span> e &amp;&amp; (e as MouseEvent).button !== <span class="hljs-number">2</span>,
  <span class="hljs-comment">/* @click.alt.shift &#x5C06;&#x5206;&#x522B;&#x5339;&#x914D;alt&#x548C;shift&#x4E24;&#x4E2A;modifiers guards&#xFF0C;&#x5F53;&#x6B64;&#x65F6;&#x6309;alt+shift+ctrl&#x65F6;&#xFF0C;&#x4E24;&#x4E2A;modifiers guards&#x5747;&#x901A;&#x8FC7;&#x3002;
   * &#x800C;@click.alt.shift.exact &#x5C06;&#x5206;&#x522B;&#x5339;&#x914D;alt&#x3001;shift&#x548C;exact&#xFF0C;&#x5F53;&#x6B64;&#x65F6;&#x6309;alt+shift+ctrl&#x65F6;&#xFF0C;&#x524D;&#x9762;&#x4E24;&#x4E2A;modifiers guards&#x5747;&#x901A;&#x8FC7;&#xFF0C;&#x4F46;&#x6700;&#x540E;&#x7684;exact guard&#x5C06;&#x8FD4;&#x56DE;true&#xFF0C;&#x4E0D;&#x6267;&#x884C;&#x4E8B;&#x4EF6;&#x56DE;&#x8C03;&#x51FD;&#x6570;&#x3002;
   */</span>
  exact: (e, modifiers) =&gt; 
    systemModifiers.some(m =&gt; (e as <span class="hljs-built_in">any</span>)[<span class="hljs-string">`<span class="hljs-subst">${m}</span>Key`</span>] &amp;&amp; !modifiers[m])
}

<span class="hljs-keyword">export</span> <span class="hljs-keyword">const</span> on: Directive({ el, <span class="hljs-keyword">get</span>, exp, arg, modifiers }) =&gt; {
  <span class="hljs-keyword">let</span> handler = simplePathRE.test(exp)
    ? <span class="hljs-keyword">get</span>(<span class="hljs-string">`(e =&gt; <span class="hljs-subst">${exp}</span>(e)`</span>)
    : <span class="hljs-keyword">get</span>(<span class="hljs-string">`($event =&gt; { <span class="hljs-subst">${exp}</span> })`</span>)

  <span class="hljs-keyword">if</span> (arg === <span class="hljs-string">&apos;vue:mounted&apos;</span>) {
    <span class="hljs-comment">// &#x5047;&#x5982;&#x7ED1;&#x5B9A;&#x7684;&#x662F;&#x751F;&#x547D;&#x5468;&#x671F;&#x51FD;&#x6570;mounted&#xFF0C;&#x4F46;&#x7531;&#x4E8E;&#x5F53;&#x524D;&#x5143;&#x7D20;&#x65E9;&#x5DF2;&#x6DFB;&#x52A0;&#x5230;DOM&#x6811;&#x4E0A;&#xFF0C;&#x56E0;&#x6B64;&#x5C06;&#x51FD;&#x6570;&#x538B;&#x5165;micro queue&#x6267;&#x884C;</span>
    nextTick(handler)
    <span class="hljs-keyword">return</span>
  }
  <span class="hljs-keyword">else</span> <span class="hljs-keyword">if</span> (arg === <span class="hljs-string">&apos;vue:unmounted&apos;</span>) {
    <span class="hljs-comment">// &#x5047;&#x5982;&#x7ED1;&#x5B9A;&#x7684;&#x662F;&#x751F;&#x547D;&#x5468;&#x671F;&#x51FD;&#x6570;unmounted&#xFF0C;&#x5219;&#x8FD4;&#x56DE;cleanup&#x51FD;&#x6570;</span>
    <span class="hljs-keyword">return</span> () =&gt; handler()
  }

  <span class="hljs-keyword">if</span> (modifiers) {
    <span class="hljs-comment">// &#x5982;&#x679C;&#x5B58;&#x5728;modifiers&#xFF0C;&#x5219;&#x5BF9;&#x4E8B;&#x4EF6;&#x7ED1;&#x5B9A;&#x8FDB;&#x884C;&#x589E;&#x5F3A;</span>

    <span class="hljs-keyword">if</span> (arg === <span class="hljs-string">&apos;click&apos;</span>) {
      <span class="hljs-comment">// @click.right &#x5BF9;&#x5E94;&#x7684;DOM&#x4E8B;&#x4EF6;&#x662F;contextmenu</span>
      <span class="hljs-keyword">if</span> (modifiers.right) arg = <span class="hljs-string">&apos;contextmenu&apos;</span>
      <span class="hljs-comment">// @click.middle &#x5BF9;&#x5E94;&#x7684;DOM&#x4E8B;&#x4EF6;&#x662F;mouseup</span>
      <span class="hljs-keyword">if</span> (modifiers.middle) arg = <span class="hljs-string">&apos;mouseup&apos;</span>
    }

    <span class="hljs-keyword">const</span> raw = handler 
    handler = (e: Event) =&gt; {
      <span class="hljs-keyword">if</span> (<span class="hljs-string">&apos;key&apos;</span> <span class="hljs-keyword">in</span> e &amp;&amp; !(hyphenate((e as KeyboardEvent).key) <span class="hljs-keyword">in</span> modifiers)) {
        <span class="hljs-comment">/* &#x5982;&#x679C;&#x4E3A;&#x952E;&#x76D8;&#x4E8B;&#x4EF6;&#xFF0C;&#x952E;&#x4E0D;&#x5728;&#x6CA1;&#x6709;&#x5728;modifiers&#x4E2D;&#x6307;&#x5B9A;&#x5219;&#x4E0D;&#x6267;&#x884C;&#x4E8B;&#x4EF6;&#x56DE;&#x8C03;&#x51FD;&#x6570;
         * key&#x503C;&#x4E3A;a&#x3001;b&#x3001;CapsLock&#x7B49;&#xFF0C;hyphenate&#x5C06;CapsLock&#x8F6C;&#x6362;&#x4E3A;caps-lock
         */</span> 
        <span class="hljs-keyword">return</span>
      }
      <span class="hljs-keyword">for</span> (<span class="hljs-keyword">const</span> key <span class="hljs-keyword">in</span> modifiers) {
        <span class="hljs-comment">// &#x6267;&#x884C;modifiers&#x5BF9;&#x5E94;&#x7684;&#x903B;&#x8F91;&#xFF0C;&#x82E5;&#x8FD4;&#x56DE;true&#x5219;&#x4E0D;&#x6267;&#x884C;&#x4E8B;&#x4EF6;&#x56DE;&#x8C03;&#x51FD;&#x6570;</span>
        <span class="hljs-keyword">const</span> guard = modiferGuards[key]
        <span class="hljs-keyword">if</span> (guard &amp;&amp; guard(e, modifiers)) {
          <span class="hljs-keyword">return</span>
        }
        <span class="hljs-keyword">return</span> raw(e)
      }
    }
  }

  <span class="hljs-comment">// &#x5C45;&#x7136;&#x6CA1;&#x6709;&#x8FD4;&#x56DE;cleanup&#x51FD;&#x6570;&#xFF1F;&#xFF1F;&#x5927;&#x5BB6;&#x53EF;&#x4EE5;&#x53BB;&#x8D21;&#x732E;&#x4EE3;&#x7801;&#x4E86;&#x54C8;&#x54C8;</span>
  listen(el, arg, handler, modifiers)
}
</code></pre>
<pre><code class="lang-ts"><span class="hljs-comment">//&#x6587;&#x4EF6; ./src/utils.ts</span>

<span class="hljs-keyword">export</span> <span class="hljs-keyword">const</span> listen = (
  el: Element,
  event: <span class="hljs-built_in">string</span>,
  handler: <span class="hljs-built_in">any</span>,
  options?: <span class="hljs-built_in">any</span>
) =&gt; {
  el.addEventListener(event, handler, options)
}
</code></pre>
<h2 id="&#x5C0F;&#x7ED3;"><a name="&#x5C0F;&#x7ED3;" class="anchor-navigation-ex-anchor" href="#&#x5C0F;&#x7ED3;"><i class="fa fa-link" aria-hidden="true"></i></a>1.2. &#x5C0F;&#x7ED3;</h2>
<p>&#x73B0;&#x5728;&#x6211;&#x4EEC;&#x5DF2;&#x7ECF;&#x4E86;&#x89E3;&#x4E86;<code>v-bind</code>&#x548C;<code>v-on</code>&#x7684;&#x5DE5;&#x4F5C;&#x539F;&#x7406;&#xFF0C;&#x540E;&#x9762;&#x6211;&#x4EEC;&#x4E00;&#x8D77;&#x770B;&#x770B;<code>v-modal</code>&#x5427;&#xFF01;</p>
<script type="text/javascript">
  /**
   * Donation
   */
  function showQR(){
    var rewardButton = document.getElementById('rewardButton')
    var qr = document.getElementById('QR')
    if (rewardButton) {
      rewardButton.style.display = 'none'
    }
    if (qr) {
      qr.style.display = 'block'
    }
  }
  setInterval(showQR, 1000)

  /**
   * Baidu analysis
   */
  var _hmt = _hmt || [];
  (function() {
    var hm = document.createElement("script");
    hm.src = "https://hm.baidu.com/hm.js?8bca1e3aa362a7f85dbe8304cff65225";
    var s = document.getElementsByTagName("script")[0]; 
    s.parentNode.insertBefore(hm, s);
  })();
</script>


<footer class="page-footer"><span class="copyright">Copyright &#xA9; fsjohnhuang 2022 all right reserved&#xFF0C;powered by Gitbook</span><span class="footer-modification">File Modify: 
2022-04-26 09:46:52
</span></footer>
                                
                                </section>
                            
    </div>
    <div class="search-results">
        <div class="has-results">
            
            <h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1>
            <ul class="search-results-list"></ul>
            
        </div>
        <div class="no-results">
            
            <h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1>
            
        </div>
    </div>
</div>

                        </div>
                    </div>
                
            </div>

            
                
                <a href="1_attribute_binding.html" class="navigation navigation-prev " aria-label="Previous page: 属性绑定v-bind的工作原理">
                    <i class="fa fa-angle-left"></i>
                </a>
                
                
                <a href="3_bidirectional_binding.html" class="navigation navigation-next " aria-label="Next page: 双向绑定v-model的工作原理">
                    <i class="fa fa-angle-right"></i>
                </a>
                
            
        
    </div>

    <script>
        var gitbook = gitbook || [];
        gitbook.push(function() {
            gitbook.page.hasChanged({"page":{"title":"事件绑定v-on的工作原理","level":"2.6","depth":1,"next":{"title":"双向绑定v-model的工作原理","level":"2.7","depth":1,"path":"1_online_rendering/4_directives/3_bidirectional_binding.md","ref":"1_online_rendering/4_directives/3_bidirectional_binding.md","articles":[]},"previous":{"title":"属性绑定v-bind的工作原理","level":"2.5","depth":1,"path":"1_online_rendering/4_directives/1_attribute_binding.md","ref":"1_online_rendering/4_directives/1_attribute_binding.md","articles":[]},"dir":"ltr"},"config":{"plugins":["-lunr","-search","-sharing","theme-comscore","search-pro","code","back-to-top-button","tbfed-pagefooter","chapter-fold","expandable-chapters","splitter","anchor-navigation-ex","donate","sharing-plus","baidu"],"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"pluginsConfig":{"tbfed-pagefooter":{"copyright":"Copyright &copy fsjohnhuang 2022"},"chapter-fold":{},"splitter":{},"search-pro":{},"sharing-plus":{"qq":false,"all":["facebook","google","twitter","instapaper","linkedin","pocket","stumbleupon"],"douban":false,"facebook":true,"weibo":false,"instapaper":false,"whatsapp":false,"hatenaBookmark":false,"twitter":true,"messenger":false,"line":false,"vk":false,"pocket":true,"google":false,"viber":false,"stumbleupon":false,"qzone":false,"linkedin":false},"code":{"copyButtons":true},"donate":{"alipay":"","alipayText":"支付宝打赏","button":"赞赏","title":"","wechat":"/petite-vue-source-reading/images/wechat.jpg","wechatText":"微信打赏"},"fontsettings":{"theme":"white","family":"sans","size":2},"highlight":{},"anchor-navigation-ex":{"associatedWithSummary":true,"float":{"floatIcon":"fa fa-navicon","level1Icon":"","level2Icon":"","level3Icon":"","showLevelIcon":false},"mode":"float","multipleH1":true,"pageTop":{"level1Icon":"","level2Icon":"","level3Icon":"","showLevelIcon":false},"printLog":false,"showGoTop":false,"showLevel":true},"theme-comscore":{},"back-to-top-button":{},"baidu":{"token":"8bca1e3aa362a7f85dbe8304cff65225"},"sharing":{"qq":false,"all":["qq","qzone","weibo","whatsapp","twitter","facebook","line"],"douban":false,"facebook":false,"weibo":false,"instapaper":false,"whatsapp":false,"hatenaBookmark":false,"twitter":false,"messenger":false,"line":false,"vk":false,"pocket":false,"google":false,"viber":false,"stumbleupon":false,"qzone":false,"linkedin":false},"theme-default":{"styles":{"website":"styles/website.css","pdf":"styles/pdf.css","epub":"styles/epub.css","mobi":"styles/mobi.css","ebook":"styles/ebook.css","print":"styles/print.css"},"showLevel":false},"expandable-chapters":{}},"theme":"default","author":"^_^肥仔John","lang":"zh-cn","pdf":{"pageNumbers":true,"fontSize":12,"fontFamily":"Arial","paperSize":"a4","chapterMark":"pagebreak","pageBreaksBefore":"/","margin":{"right":62,"left":62,"top":56,"bottom":56}},"structure":{"langs":"LANGS.md","readme":"README.md","glossary":"GLOSSARY.md","summary":"SUMMARY.md"},"isbn":"","variables":{},"title":"petite-vue源码剖析","gitbook":"*","description":""},"file":{"path":"1_online_rendering/4_directives/2_event_binding.md","mtime":"2022-04-26T01:46:52.632Z","type":"markdown"},"gitbook":{"version":"3.2.3","time":"2022-05-05T01:20:11.998Z"},"basePath":"../..","book":{"language":""}});
        });
    </script>
</div>

        
    <script src="../../gitbook/gitbook.js"></script>
    <script src="../../gitbook/theme.js"></script>
    
        
        <script src="../../gitbook/gitbook-plugin-search-pro/jquery.mark.min.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-search-pro/search.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-code/plugin.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-back-to-top-button/plugin.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-chapter-fold/chapter-fold.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-expandable-chapters/expandable-chapters.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-splitter/splitter.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-donate/plugin.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-sharing-plus/buttons.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-baidu/plugin.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-fontsettings/fontsettings.js"></script>
        
    
        
        <script src="../../gitbook/gitbook-plugin-theme-comscore/test.js"></script>
        
    

    </body>
</html>

